The Culling Dance

 is a side quest in Tyranny. It is available:
 * after completing the Rite of Savagery and Stone (interaction with Red-Fang);
 * if the Young Fatebinder has the Hunter background;
 * if the Fatebinder becomes the new Prima.

Synopsis
You have agreed to endure the Rite of Culling, a ritual for mystics, to impress Speaks-for-Soil, an Elder earth-mystic of the Beastman tribe that inhabits Stone Down.

Walkthrough

 * Head to the Passage of Culling. Use the Elder-Teeth Necklace on the lode in the center. Defeat the Bane (3 Wisps).
 * Use the necklace again, this time to spawn 3 Scourges and 1 Malice.
 * Use it for the final time to spawn a Havoc supported by a Malice and two Wisps.
 * Return to Speaks-for-Soil.